DNV GL unveils concept for live asset risk assessment using digital twins

first_img Image: DNV GL has unveiled the Probabilistic Digital Twin (PDT) concept at Offshore Europe 2019.Photo: courtesy of DNV GL. A digital twin is a digital “mirror” of a physical asset, including models of its structure and dynamics which are updated through a combination of multiple data sources. They bring significant benefits for data management and decision making, providing a consistent, accurate single source of information.Risk models are rarely brought forward into operations – they typically exist separately within engineering, operations and health and safety disciplines – and are mostly used in desk studies, based on analyzing historical data and offering only a static picture of potential risks.In reality, risk is dynamic, varying in time with operational conditions and the condition of the asset, but this is not captured by current risk models which are seldom updated and lack real-time and prediction capabilities.Liv A. Hovem, CEO, DNV GL – Oil & Gas said: “A single, unscheduled downtime event can cost from $2 to $5 million per day – better and up-to-date risk information may significantly reduce unplanned or unnecessary downtime.“Our proposed Probabilistic Digital Twin is designed to bring risk analysis into ‘live’ use. Their creation would add a layer of probabilistic risk modelling to existing digital twins, capturing uncertainty, the effect of new knowledge and actual conditions on operational performance and safety.“By providing a more up-to-date and asset-specific risk picture, a PDT allows operators to adjust operations or take preventive actions to maintain an acceptable risk level at all times. This will enhance safety and reduce expensive downtime.”The Probabilistic Digital Twin concept was unveiled at Offshore Europe 2019, by; Dr. Frank Børre Pedersen, Programme director Oil & Gas at DNV GL’s Group Technology and Research unit; and senior research scientist Dr. Andreas Hafver.“DNV GL is prepared for a future where our clients will have digital twins of all their assets, having encouraged their use in multiple industries. Many of our clients are building and maintaining digital twins of their assets. The PDT allows us and our clients to take advantage of all the information such twins contain to improve risk assessments,” said Frank Børre Pedersen.“The Probabilistic Digital Twin is not an alternative, but an evolution of the digital twin – expanding it into the risk analysis space. It is a new way of delivering risk analysis – continuously and in a digital format, adding more value in day-to-day decision making.”A PDT may include reliability and degradation models to predict the remaining lifetime of mechanical components. However, it is more than a predictive maintenance tool. Risk is not only about component failures, but also about exposure to hazards and how the asset is operated. A PDT can say something about the overall impact on safety, by combining reliability models with models of the hazard exposure and the consequences if something goes wrong.The main elements which distinguish a probabilistic digital twin from traditional digital twins are:Probabilistic degradation and failure models, reflecting uncertainty and variability of conditions and processes that affect performance and lead to failures.Logic and relational models, relating performance variables to failures and loss events.Surrogate models, approximating heavier simulation models, allowing fast queries and enabling propagation of uncertainty and model coupling. Source: Company Press Release DNV GL proposes the “Probabilistic Digital Twin” (PDT) to close the gap between digital twins – used increasingly by operators to manage the performance of their assets – and risk analysis still largely conducted manually before assets enter servicelast_img read more

Another F-35 Lightning II Contract Goes to Lockheed Martin

first_imgLockheed Martin Corp., Lockheed Martin Aeronautics Co., Fort Worth, Texas, is being awarded an $8,1 million modification to the previously awarded F-35 Lightning II Low Rate Initial Production (LRIP) Lot VI contract. Another F-35 Lightning II Contract Goes to Lockheed Martin View post tag: contract View post tag: F-35 Authorities This modification provides for the maintenance and support for the F-16 chase aircraft supporting the F-35.Work will be performed in Fort Worth, Texas, and is expected to be completed in June 2015.Fiscal 2012 aircraft procurement (Air Force) funds in the amount of $8,167,322 will be obligated at time of award, all of which will expire at the end of the current fiscal year.The Naval Air Systems Command, Patuxent River, Maryland, is the contracting activity.[mappress]Press Release, August 26, 2014; Image: f35.com View post tag: II August 26, 2014 View post tag: ANOTHER View post tag: americascenter_img View post tag: goes View post tag: Naval View post tag: Lightning Share this article View post tag: Navy View post tag: News by topic Back to overview,Home naval-today Another F-35 Lightning II Contract Goes to Lockheed Martin View post tag: Lockheed Martinlast_img read more